Stupidity: The police inspector leaves her calling card, not written in Braille, to the blind protagonist, asking her to call her in the next hours if she finds something out. She knows she lives alone. The scene is played unironically.
Suggested correction: There are devices that blind people use to read print to them, so they don't have to rely on everything being in Braille.
I am sure, but they show the 'training' she receives from Asia Argento in the couple of previous days, the only device being a phone that accepts verbal commands, and at no point she is shown reading anything or being introduced to the possibility of doing so, they spend time on that. The calling card is then used for a plot twist later, but it makes no sense that the thoughtful cop would give to a blind person without even asking if she can use it or giving the slight non-verbal hint that it was a blunder or problem.